PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6)

                                          STATION:   DETROIT
                                          MONTH:     FEBRUARY
                                          YEAR:      2004
                                          LATITUDE:   42 13 N                   
                                          LONGITUDE:  83 20 W                   

  TEMPERATURE IN F:       :PCPN:    SNOW:  WIND      :SUNSHINE: SKY     :PK WND 
================================================================================
1   2   3   4   5  6A  6B    7    8   9   10  11  12  13   14  15   16   17  18
                                          AVG MX 2MIN
DY MAX MIN AVG DEP HDD CDD  WTR  SNW DPTH SPD SPD DIR MIN PSBL S-S WX    SPD DR
================================================================================

 1  24   3  14 -11  51   0 0.00  0.0    5  5.0 13  80   M    M   6 18     17  90
 2  34  14  24  -1  41   0 0.02  0.0    4  7.9 13 130   M    M   8 168    17 130
 3  38  30  34   9  31   0 0.17    T    4 11.9 24 260   M    M  10 18     31 260
 4  30  17  24  -1  41   0 0.00  0.0    3  7.7 21 280   M    M   4        25 290
 5  28  17  23  -2  42   0 0.01  0.2    3 10.7 21  50   M    M   9 1      25  80
 6  36  28  32   7  33   0 0.01    T    3  9.2 18 260   M    M  10 16     22 270
 7  30  16  23  -2  42   0    T    T    3 10.2 16 320   M    M   8 18     21 330
 8  29   8  19  -7  46   0 0.00  0.0    2 11.5 24 220   M    M   2 1      28 220
 9  37  21  29   3  36   0 0.00  0.0    2 20.1 35 230   M    M   8        43 230
10  32  19  26   0  39   0    T  0.1    2 15.2 23 280   M    M   9 18     26 260
11  30  15  23  -3  42   0 0.00  0.0    2  8.0 14 220   M    M   6        16 220
12  31  21  26   0  39   0 0.00  0.0    2 10.0 21 250   M    M   9 18     25 290
13  29  23  26   0  39   0 0.00  0.0    2 19.3 28 230   M    M   7 18     33 230
14  35  21  28   1  37   0    T  0.1    1 10.6 22 230   M    M   7 1      28 230
15  23   9  16 -11  49   0    T    T    1  7.2 22 360   M    M   3        26  20
16  24   7  16 -11  49   0 0.00  0.0    1  4.1 12 130   M    M   4        15 140
17  34  17  26  -1  39   0 0.00  0.0    1  3.8 12 220   M    M   6        13 230
18  36  18  27  -1  38   0 0.00  0.0    1  9.0 22 210   M    M   6 18     26 240
19  45  28  37   9  28   0 0.00  0.0    1  5.8 10  90   M    M   7 18     13 220
20  50  34  42  14  23   0 0.37  0.0    0 12.1 29 250   M    M  10 18     36 260
21  36  32  34   5  31   0 0.03  0.3    0 17.2 28 280   M    M  10 159    37 290
22  40  30  35   6  30   0 0.00  0.0    0  6.4 15 310   M    M   9        16 310
23  39  30  35   6  30   0 0.02  0.2    0  6.6 15 140   M    M  10 18     18 140
24  36  25  31   1  34   0    T    T    0  9.7 17  30   M    M   8 18     21  10
25  42  21  32   2  33   0 0.00  0.0    0  4.9 13  70   M    M   2 18     15  70
26  40  28  34   4  31   0 0.00  0.0    0  8.6 15  60   M    M   9 18     17  60
27  46  26  36   5  29   0 0.00  0.0    0  5.8 12  60   M    M   1 8      14  90
28  52  23  38   7  27   0 0.00  0.0    0  5.1 15 230   M    M   5        17 230
29  57  28  43  12  22   0 0.00  0.0    0  6.1 13 200   M    M   7 18     14 160
================================================================================
SM 1043  609      1052   0  0.63     0.9 269.7          M      200              
================================================================================
AV 36.0 21.0                               9.3 FASTST  PSBL  %   7    MAX(MPH)  
                                 MISC ---->    35 230                 43  230   
================================================================================
NOTES:
# LAST OF SEVERAL OCCURRENCES

COLUMN 17 PEAK WIND IN M.P.H.

PRELIMINARY LOCAL CLIMATOLOGICAL DATA (WS FORM: F-6) , PAGE 2

                                          STATION:  DETROIT
                                          MONTH:    FEBRUARY
                                          YEAR:     2004
                                          LATITUDE:   42 13 N                   
                                          LONGITUDE:  83 20 W                   

[TEMPERATURE DATA]      [PRECIPITATION DATA]       SYMBOLS USED IN COLUMN 16    

AVERAGE MONTHLY: 28.5   TOTAL FOR MONTH:   0.63    1 = FOG                      
DPTR FM NORMAL:   1.3   DPTR FM NORMAL:   -1.25    2 = FOG REDUCING VISIBILITY  
HIGHEST:    57 ON 29    GRTST 24HR  0.37 ON 20-20      TO 1/4 MILE OR LESS      
LOWEST:      3 ON  1                               3 = THUNDER                  
                        SNOW, ICE PELLETS, HAIL    4 = ICE PELLETS              
                        TOTAL MONTH:   0.9 INCH    5 = HAIL                     
                        GRTST 24HR   0.3 ON 21-21  6 = GLAZE OR RIME            
                        GRTST DEPTH:   5 ON  1     7 = BLOWING DUST OR SAND:    
                                                       VSBY 1/2 MILE OR LESS    
                                                   8 = SMOKE OR HAZE            
[NO. OF DAYS WITH]      [WEATHER - DAYS WITH]      9 = BLOWING SNOW             
                                                   X = TORNADO                  
MAX 32 OR BELOW:  11    0.01 INCH OR MORE:   7                                  
MAX 90 OR ABOVE:   0    0.10 INCH OR MORE:   2                                  
MIN 32 OR BELOW:  28    0.50 INCH OR MORE:   0                                  
MIN  0 OR BELOW:   0    1.00 INCH OR MORE:   0                                  

[HDD (BASE 65) ]                                                                
TOTAL THIS MO.  1052    CLEAR  (SCALE 0-3)   4                                  
DPTR FM NORMAL   -57    PTCLDY (SCALE 4-7)  11                                  
SEASONAL TOTAL  4564    CLOUDY (SCALE 8-10) 14                                  
DPTR FM NORMAL  -180                                                            

[CDD (BASE 65) ]                                                                
TOTAL THIS MO.     0                                                            
DPTR FM NORMAL     0    [PRESSURE DATA]                                         
SEASONAL TOTAL     0    HIGHEST SLP 30.64 ON 16                                 
DPTR FM NORMAL     0    LOWEST  SLP 29.28 ON 20                                 

[REMARKS]